| P204从高铝粉煤灰硫酸浸液中萃取除铁 |
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| 引用本文： | 赵爱春,贺欣,张廷安. P204从高铝粉煤灰硫酸浸液中萃取除铁[J]. 有色金属科学与工程, 2022, 13(2): 16-21. DOI: 10.13264/j.cnki.ysjskx.2022.02.003 |
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| 作者姓名： | 赵爱春 贺欣 张廷安 |
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| 作者单位： | 1.太原科技大学材料科学与工程学院，太原 030024 |
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| 基金项目： | 国家自然科学基金;山西省高等学校科技创新项目;太原科技大学博士启动基金资助项目;山西省基础研究计划资助项目 |
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| 摘 要： | 主要针对高铝粉煤灰酸浸液中铁铝萃取分离性能进行研究,通过模拟高铝粉煤灰酸浸液(C(Al3+)=37.1 g/L,C(Fe3+)=5.1 g/L),采用P204+260#溶剂油萃取体系,对组成液中铁铝进行萃取分离,系统研究了P204体积分数、温度、反应时间、溶液初始pH值、相比V(O):V(A)等因素对萃取和反萃的影响,...
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| 关 键 词： | 高铝粉煤灰 P204 铁 铝 萃取 反萃 |
| 收稿时间： | 2021-09-10 |
Extraction of Fe from sulfuric acid leaching solution of high-aluminum fly ash by P204 |
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| Affiliation: | 1.School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China2.Key Laboratory for Ecological Metallurgy of Multimetallic Mineral, Ministry of Education, Northeastern University, Shenyang 110819, China |
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| Abstract: | This paper researched the separation performance of Fe(Ⅲ) and Al(Ⅲ) from a high-aluminum CFA (coal fly ash) sulfuric acid leaching solution. When such a leaching solution (C(Al3+)=37.1 g/L, C(Fe3+)=5.1 g/L) was simulated, Fe(Ⅲ) and Al(Ⅲ) in the composition solution were extracted by using a P204+260# solvent oil extraction system. The effects of different parameters, such as the volume fraction of P204, temperature, reaction time, pH of the initial aqueous phase and organic-to-aqueous phase ratio V(O): V(A), on the extraction of Fe(Ⅲ) with P204 were investigated. Experimental results showed that when the CFA acid leaching solution was 40% P204 and 60% 260# kerosene at pH of 0.4 at 60 ℃ and the phase ratio of V(O): V(A)=1:1 contacted for 20 min, Fe(Ⅲ) extraction was 93.24% with 2.3% Al(Ⅲ) coextracted. The Fe-loaded organic phase was stripped with 5 mol/L HCl at an organic-to-aqueous phase ratio of 1:3, and almost 92.96% of the Fe(Ⅲ) was recovered from the Fe-loaded organic phase contact for 10 min. |
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